<!DOCTYPE html>
<html>
   <head>
      <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
      <title>&lt;div&gt; with role rowheader; inherited supported state or property "aria-expanded" value
         of "undefined"
      </title>
   </head>
   <body>
      <div role="grid">
         <div role="row">
            <span id="test" role="rowheader" aria-expanded="undefined">Placeholder content</span>
            <span role="gridcell" id="obj1">obj1</span>
            <span role="gridcell" id="obj2">obj2</span>
         </div>
         <div role="row">
            <span role="rowheader">header cell 2</span>
            <span role="gridcell">obj1</span>
            <span role="gridcell">obj2</span>
         </div>
      </div>
   </body>
</html>